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adoni [48]
3 years ago
10

Solve the following system of equations

Mathematics
1 answer:
Rashid [163]3 years ago
6 0

Answer:

D

Step-by-step explanation:

d is the answer, if you plug those values in then you will get the answers and they match up

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12<2x+2≤22 plz help me tnx
Alja [10]

Firstly, subtract 2 from all sides of this inequality: 10

Next, divide by 2 on all sides of the inequality and <u>your answer will be 5</u>

7 0
2 years ago
In 2008 Alice bought a house. In 2014 she sold it for a 20% profit. In 2019 it was then sold at a 5% loss for £182,400 Work out
Wittaler [7]

Answer:

£160,000

Step-by-step explanation:

Alice bought the house in 2008 for £x.

In 2014, the house sold for a 20% profit, so it sold for 1.2x. (* see explanation below)

In 2019, the house sold for a 5% loss, so it sold for 0.95(1.2x). (* see explanation below)

In 2019, it sold for £182,400.

0.95(1.2x) = 182,400

1.14x = 182,400

x = 182,400/1.14

x = 160,000

Answer: £160,000

* Explanation of 1.2 and 0.95.

A quick way to apply a percent increase or decrease to a number is to using the following method. The number you start with is 100% of the number. If you are adding a percent to it, then add the percent to 100% and convert it to a decimal. If you are subtracting the percent, then subtract the percent from 100% and convert to a decimal. Then multiply the decimal by the original number to find the increased or decreased number.

Example of percent increase:

A book used to cost £10. The price went up by 12%. What is the new price?

100% + 12% = 112% = 1.12

1.12 * £10 = £11.20

Example of percent decrease:

A pair of trousers costs £60. It is on sale at 35% off the regular price. What is the sale price?

100% - 35% = 65% = 0.65

0.65 * £60 = £39

5 0
2 years ago
Which of the binomials below is a factor of this
Illusion [34]

Answer:

A

Step-by-step explanation:

Given

x² - 13x + 30

Consider the factors of the constant term (+ 30) which sum to give the coefficient of the x- term (- 13)

The factors are - 3 and - 10, since

- 3 × - 10 = + 30 and - 3 - 10 = - 13 , thus

x² - 13x + 30 = (x - 3)(x - 10) ← in factored form

Thus (x - 3) is a factor of the polynomial → A

7 0
3 years ago
Read 2 more answers
Determine whether triangle M'N'O' is a dilation of triangle MNO.
3241004551 [841]
<span>The answer is:
not a dilation because the points of the image are not moved toward the center of dilation proportionally</span>
7 0
3 years ago
Read 2 more answers
Whats the answer to 21g-6f-8g
Mkey [24]
21g-6f-8g
13g-6f is the answer
combine like terms
7 0
3 years ago
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